Improvement in bed and seat-springs



( JAMES P. CH AMBERLIN. improvement in Bed and Seat Springs. No. 114,923. Patented'May16,I87L

la N- FIG-.2.

' WITNESSES l/VIIE/VT'OR A M. Hi0 m-z/mommuc ca mx/asaolcws PRUCESSJ ifitiitli fitter JAMES P. AOHAMBERLIN, OF NORTH ABINGTON, MASSACHUSETTS.

Letters Patent No{114,92s, dated May 16, 1871.

IMPROVEMENTJN BED AND SEAT-SPRINGS.

' The-Schedule referred 1:6 in these Letters Patent and making part of the same.

To al l persons to whom these presents shall game Be it known that I, Jmns P. OHAMBERLIN, of

North Abington, in the county of Plymouth and Stateof Massachusetts, have invented a certain new .and useful improved .Bed and Seat-Spring; and that the following is a full and exact description of the same,

reference beingliad to the accompanying drawing.

The present invention relates to that class of bed andseat-spring's arranged for an elastic action by torsion of the wire fromwhich the springs are made;

'- cross-pieces G. v v y I), a slat arranged lengthwise to frame A, to theend pieces 0 of which it is connected, by and through the wires a. fastened by staples b, to the under side of the slat, and hung by their eyes 0 to loops (l of the end pieces 0, to frame A.

A The wires a on under side of slat can beeach continuous from end to end or separated at 0; both formed of a similar shape, and,-su'ch as shown in the drawing, terminating with arms 9 at the ends of the slat that project at right angles to the length of the wire on the slat, vertically inclining to theslat and extend ing outward therefrom beyond eachv edge.

By these arms, 9, the slat is hung to the frame A, as before described, forming a hinge, E, as it were, the leaf n of which, attached to the frame at the one end of frame, is shown as made of leather 1, or other flexible material, and at the other end of a wire eye, m, swiveled in the cross-piece O.

The wires 11 on under side of slat are fastened thereto by staples, and, as before described, said staples being located one at the extreme ends of each wire, and

the other at or near the ends of slat and at or about the angle of wire.

With wires applied to the slat, and hung to the frame A, as described, pressure on the slat causes a twisting or torsion of the wires, imparting thereby elasticity and spring to the slat, the yielding. hinge to the frame allowing the slat to move down and up from such pressure. I

Although in the drawing only one slat is shown, springs such as described may be as well applied to a series (more or less in number) of slats, according as the special purpose for which the slats are to'bc used may require.

As the wire springs are extended under and along the length of the slat it secures a more perfect and direct movement of the slat 'up and down, enabling tyingbands for the slats to be dispensed with, and the slats are susceptible of a transverse rock, adapting them for lise in the construction of seats, where a rock to the slats is desirable. v v r The wire springs also. serve to stifien the slats, preventing them from springing down from end to end, while at the same time they have all necessary elasticity and spring.

Thearrangement of springs des'c"ibed is also cheap to manufacture, and easily and readily made.

Having thus described my invention,

What I claim, and desire to secure by Letters Pat cut, is

Wire-springs a,'formed substantially as herein described and shown in the drawing, in combination with a slat or slats, D, when connected thereto and to a suitable frame for .action, substantially as described,

for the purpose specified.

The above specification of my improved bed and seat-spring signed by me this 10th day of March, A.

J. P. OHAMBERLIN.

Witnesses v EDWIN W. BROWN,

ALBERT W. BROWN. 

